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If f(x) = 4x² + +5 then, f(-2)
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If f(x) = 4x² + +5 then, f(-2)

User Manu P
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1 Answer

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Answer:

Explanation:

equation is given as


fx=4x^(2) +5 if
fx is
f(-2) then we knew the vale of x which is
-2\\ so we will substitute it in the equation as:


f(-2) = 4(-2)^(2) +5

solve:


-2f=4(4)+5\\-2f=16+5\\-2f=21\\(-2f)/(-2) =(21)/(-2)


f=(21)/(-2)


f=-10.5

User NSNoob
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